Before you enable Virtual SAN on a cluster and start using it as virtual machine storage, provide the infrastructure that is required for correct operation of Virtual SAN. Selecting or Verifying the Compatibility of Storage DevicesAn important step before you deploy Virtual SAN is to verify that your storage devices, drivers, and firmware are compatible with Virtual SAN by consulting the VMware Compatibility Guide. Preparing StorageProvide enough disk space for Virtual SAN and for the virtualized workloads that use the Virtual SAN datastore. Providing Memory for Virtual SANYou must provision hosts with memory according to the maximum number of devices and disk groups that you intend to map to Virtual SAN. Preparing Your Hosts for Virtual SANAs a part of the preparation for enabling Virtual SAN, review the requirements and recommendations about the configuration of hosts for the cluster. Virtual SAN and vCenter Server CompatibilitySynchronize the versions of vCenter Server and of ESXi to avoid potential faults because of differences in the Virtual SAN support in vCenter Server and ESXi. Preparing Storage ControllersConfigure the storage controller on a host according to the requirements of Virtual SAN. Configuring Virtual SAN NetworkBefore you enable Virtual SAN on a cluster and ESXi hosts, you must construct the necessary network to carry the Virtual SAN communication. Change the Multicast Address for a Virtual SAN ClusterIn an environment that contains several Virtual SAN clusters on the same Layer 2 network, for the hosts in each cluster you must assign a unique multicast address so that they receive traffic only for the hosts in the cluster. Considerations about the Virtual SAN LicenseWhen you prepare your cluster for Virtual SAN, review the requirements of the Virtual SAN license.